OpenSearchServer is a stable, high-performance search engine and a suite of high-powered full text search algorithms. Documents can be indexed in sixteen languages. Multi-lingual analyzers slice sentences into words, then run lemmatisation algorithms on words based on the document's language. Numerous document formats are supported, such as XML, HTML/XHTML, PDF, Word, PowerPoint, RTF, OpenOffice, plain text, MP3/4, Ogg, FLAC, etc. The Web interface, built around the Zkoss framework, provides an easy way to manage OSS. The integration is fast using the PHP client or the API (XML over HTTP). The crawlers of OpenSearchServer go through Web sites, file systems, and databases to rapidly and easily build your index.
| Tags | search engine web crawler crawler search Crawl web crawling index/search Indexing Indexing/Search open search server |
|---|---|
| Licenses | GPL |
| Operating Systems | Windows Mac OS X Java SE Linux Solaris |
| Implementation | Java ZK Lucene Apache POI Textcat PHP C/C++ Apache Tomcat |
| Translations | English |
Recent releases


Release Notes: Phonetic searching, joints, named entities, geo-location, renderer, and more.


Release Notes: This release candidate improves the performance when loading a classifier with a large set of items.


Release Notes: This release fixes a problem with double encoding when a URL contains whitespace or percent signs. The Tomcat package, Selenium, and Quartz libraries have been upgraded to their latest stable versions.


Release Notes: This release fixes a few issues from the previous release candidate. It is now possible to decide whether all the content of the RSS feed is indexed in only one document or if each item is indexed individually as one document in the index. The refresh action in the runtime/system tab panel no longer changes the selected tab. The failover mechanism in the parser is protected against infinite loops. In case of a parsing error, every kind of error is reported.


Release Notes: The second release candidate fixes a bug in RC0 which could crash the Java runtime while crawling websites with malformed cookies.